Abstract:Abstract: Existing IoT anomaly detection studies have achieved high classification performance, but most focus on accuracy and F1-score without explicitly controlling the false positive rate (FPR). In addition, many approaches…
oaches rely on a single detection perspective, limiting their operational reliability. To address this gap, this study proposes a hybrid anomaly detection framework integrating Long Short-Term Memory (LSTM), Shannon entropy, and autoencoder reconstruction error. Shannon entropy is incorporated as an additional feature, while LSTM and the autoencoder capture temporal and reconstruction characteristics. The resulting hybrid representation is processed by a constraint-based threshold selection mechanism that enforces FPR . Experiments on the TON-IoT and Edge-IIoTset datasets achieved average F1-scores of 0.9250 and 0.9934, while maintaining average FPR values of 0.0091 and 0.0714, respectively. Analysis of entropy distributions showed consistent differences between normal and anomalous traffic across both datasets, indicating that Shannon entropy provides discriminative information for anomaly detection. These results demonstrate strong detection performance with controlled false alarms, while ablation studies confirm the significant contribution of Shannon entropy to overall model performance.
Keywords: false positive rate; hybrid deep learning; Internet of Things; network anomaly detection; Shannon entropy
Abstrak: Penelitian deteksi anomali Internet of Things (IoT) telah menunjukkan performa klasifikasi yang tinggi, namun sebagian besar masih berfokus pada accuracy dan F1-score tanpa mengendalikan false positive rate (FPR) secara eksplisit. Selain itu, banyak pendekatan hanya memanfaatkan satu perspektif deteksi sehingga reliabilitas operasionalnya masih terbatas. Untuk mengatasi kesenjangan tersebut, penelitian ini mengusulkan kerangka deteksi anomali hybrid yang mengintegrasikan Long Short-Term Memory (LSTM), Shannon entropy, dan autoencoder reconstruction error. Shannon entropy digunakan sebagai fitur tambahan, sedangkan LSTM dan autoencoder menangkap karakteristik temporal dan deviasi rekonstruksi. Representasi hybrid yang dihasilkan kemudian diproses melalui mekanisme constraint-based threshold selection dengan batas FPR . Hasil pengujian pada dataset TON-IoT dan Edge-IIoTset menghasilkan F1-score rata-rata sebesar 0,9250 dan 0,9934, dengan FPR rata-rata sebesar 0,0091 dan 0,0714. Perbedaan nilai entropy yang konsisten antara trafik normal dan anomali pada kedua dataset menunjukkan bahwa Shannon entropy menyediakan informasi diskriminatif untuk deteksi anomali. Hasil tersebut menunjukkan performa deteksi yang kuat dengan false alarm yang terkendali, sementara studi ablasi mengonfirmasi kontribusi signifikan Shannon entropy terhadap performa model.
Kata kunci: deteksi anomali jaringan; false positive rate; hybrid deep learning; Internet of Things; Shannon entropy
Abstract:Abstract: In this paper we discuss the development of computational application program in MATLAB to calculate the second derivative of a function by using finite difference method for various types (forward, backward, or…
r central) and any order of accuracy. The MATLAB program extends the similar one which has been developed for the first derivative. The program is designed as an implementation of the explicit formulas of finite difference formulated by Khan and Ohba. Through this program, one can easily calculate the second derivative of a function numerically with any order of accuracy and visualize it in a graphical form. Error of numerical derivatives in each order of accuracy confirm the validity of the obtained results.
Keywords: finite difference method, explicit formula, second derivative, MATLAB programming
Abstrak: Dalam makalah ini dibahas pengembangan program aplikasi komputasi pada MATLAB untuk menghitung turunan kedua suatu fungsi dengan menggunakan metode beda hingga pada berbagai tipe (maju, mundur, atau pusat) dan sebarang orde ketelitian. Program MATLAB ini melanjutkan program serupa yang telah dibuat untuk turunan pertama. Program ini dirancang sebagai implementasi dari rumus eksplisit beda hingga yang diformulasi oleh Khan dan Ohba. Melalui program ini, seseorang dengan mudah dapat menghitung turunan kedua suatu fungsi secara numerik dengan sebarang orde ketelitian dan memvisualisasinya dalam bentuk grafik. Galat dari turunan numerik di setiap orde ketelitian mengkonfirmasi kevalidan hasil yang diperoleh.
Kata kunci: metode beda hingga, rumus eksplisit, turunan kedua, pemrograman MATLAB
Abstract:The important role of freedom of expression as a basis for equality, especially within the framework of constitutional law, is very important in Indonesia. This research uses normative juridical qualitative methods to obtain…
tain a comprehensive understanding of the legal aspects that regulate freedom of expression in the country. Recognized as an essential human right, freedom of expression is explicitly protected by the 1945 Constitution of the Republic of Indonesia. The focus of this research is to examine the legal norms governing freedom of expression, which include provisions such as Article 28E paragraph (3) and Article 19 of the Constitution 1945, as well as other statutory regulations. The research results show that freedom of expression is recognized as an inalienable right by the state and is one of the foundations for the realization of a just and democratic society. Although freedom of expression is guaranteed by the constitution, this research also highlights the obstacles and challenges in its implementation. In Indonesia, challenges arise in navigating diverse interpretations of freedom of expression, with concerns about potential exploitation by entities harming public interest. Striking a balance between freedom of expression and societal stability/security is deemed crucial. The research aims to better understand the complexity of freedom of expression within the country's constitutional law and its role in promoting equality. This research aims to find useful insights for creating better policies. These policies should strike a good balance between individual freedom and public interest, ultimately fostering a fair and democratic society.
Abstract:Penelitian ini bertujuan untuk mengetahui sejauh mana pengaruh penggunaan metode explicit intruction dalam meningkatkan hasil belajar peserta didik kelas XI pada tata cara penyelenggaraan jenazah di SMA SABBIHISMA Padang.…
. Penelitian ini menggunakan metode kuantitatif dengan jenis penelitian ex post facto, Penelitian ex post facto merupakan salah satu jenis penelitian dimana variabel-variabel bebasnya telah terjadi perlakuan (treatment) yang dilakukan saat penelitian berlangsung. Penelitian jenis ini dilakukan untuk menganalisis apa saja faktor yang menjadi penyebab terjadinya suatu fenomena. Sampel yang di ambil yaitu sebanyak 40 orang dipilih melalui pengambilan sampel probability sampling dengan teknik random sampling, yaitu pengambilan anggota sampel dari populasi dilakukan secara acak tanpa memperhatikan strata yang ada dalam populasi itu. Hasil dari penelitian ini yaitu terdapat pengaruh penggunaan metode explicit intruction terhadap hasil belajar peserta didik kelas XI pada tata cara penyelenggaraan jenazah di SMA SABBIHISMA Padang. Hal ini di buktikan dengan diperolah nilai signifikan sebesar 0.000 < 0,05, sehingga H_0 ditolak dan H_a diterima. Dapat disimpulkan bahwa penerapan metode explicit intruction memiliki pengaruh terhadap hasil belajar peserta didik kelas XI pada tata cara penyelenggaraan jenazah di SMA SABBIHISMA Padang. Penelitian ini diharapkan mampu memberikan dampak postif terhadap perkembangan di dunia pendidikan terutama dalam penggunaan metode pembelajaran dan menjadi acuan untuk peneliti selanjutnya dengan topik yang berbeda
Abstract:This study evaluates the effectiveness of the East Java Province DPMPTSP marketing communication strategy in investment promotion in 2023, focusing on the marketing mix elements: product, price, place, and promotion. Through…
ough a qualitative approach, this study analyzes promotional activities that include the development of promotional materials, expansion of international networks, and strengthening of regional branding. The results of the study indicate that innovative efforts in developing promotional materials using the latest technology and interactive approaches have been carried out. However, an in-depth evaluation is needed to ensure the effectiveness of promotional materials in meeting investor needs. Price transparency, although not explicitly focused on, is important for investment decisions. This study recommends improving information related to investment costs and incentives.
International cooperation, such as with the State of Neuvo Leon-Mexico, shows efforts to expand investment networks and global market visibility, with an evaluation of the benefits and costs required. Promotional activities such as seminars on investment strategies focus on strengthening regional branding and effective promotional techniques. The novelty of this study lies in the comprehensive analysis of marketing mix elements in the context of investment promotion as well as recommendations for continuous adaptation according to market changes. These findings provide new insights for the development of more effective investment marketing communication strategies in the future.
Abstract:Penelitian ini mengevaluasi upaya peningkatan hasil belajar siswa kelas VI Semester II di SDN Petemon X/358 Surabaya pada mata pelajaran PPKn, terutama fokus pada materi ASEAN. Evaluasi awal menemukan tantangan signifikan…
n dalam kinerja siswa, dengan rata-rata nilai 52, di bawah amban KKM sekolah yaitu 80. Penelitian menyelidiki proses proses pembelajaran PPKn dengan tujuan meningkatkan hasil belajar siswa melalui Model Pembelajaran Explicit Instruction. Penelitian ini merupakan penelitian tindakan (action research). Hasil menunjukkan peningkatan kinerja dari 53% ke 84% pada siklus kedua. Penelitian menyoroti pentingya eksplorasi terus-menerus terhadap metodologi pengajaran dan pengembangan sumber belajar. Selanjutnya, penelitian dapat mengeksplorasi interaksi guru-siswa dalam konteks eksplicit instruction, serta skalabilitas model ini ke berbagai pengaturan pendidikan dan mata pelajaran. Dampak dalam jangka Panjang model ini perlu pemeriksaan lebih lanjut untuk pemahaman komprehensif.
Abstract:This study examines how thematic organization contributes to the construction of state power and social positioning in international news discourse. Drawing on Halliday’s Systemic Functional Linguistics, with a specific…
c focus on Theme–Rheme structure, the study analyses a BBC news report published in November 2023 on the Russian Supreme Court’s decision to designate the so-called “international LGBT movement” as an extremist organization. Using a qualitative textual approach, the text is segmented into clauses and analyzed to identify patterns of thematic choice and progression. The findings reveal a consistent foregrounding of institutional actors, such as state authorities and legal bodies, in Theme position when reporting legal actions and policy decisions, while members of the LGBT community and civil society figures are predominantly thematized in clauses expressing reactions, personal experiences, and anticipated consequences. This asymmetric thematic distribution constructs a discourse in which state authority is positioned as the primary agent of action, whereas affected social groups are framed as respondents to institutional power. The study demonstrates that ideological meanings in news discourse may be realized implicitly through grammatical organization rather than explicit evaluative language, and it highlights the value of Theme–Rheme analysis for examining power relations in contemporary international news reporting.